The Sender Policy Framework (SPF) is an email-authentication technique which is used to prevent spammers from sending messages on behalf of your domain. With SPF an organization can publish authorized mail servers. Together with the DMARC related information, this gives the receiver (or receiving systems) information on how trustworthy the origin of an email is. SPF is, just like DMARC, a email authentication technique that uses DNS (Domain Name Service). This gives you, as an email sender, the ability to specify which email servers are permitted to send email on behalf of your domain.

DMARC Lock

What is DMARC?

Introducing DMARC DMARC stands for Domain-based Message Authentication, Reporting and Conformance. It in fact sits on top of SPF and DKIM. What DMARC brings to

DKIM Keys

What is DKIM?

DomainKeys Identified Mail (DKIM) is the most complicated email authentication protocol out there. Even if you do extensive research, it’s hard to find one place

SPF Envelope

What is SPF?

The Sender Policy Framework (SPF) is an email-authentication technique which is used to prevent spammers from sending messages on behalf of your domain. With SPF